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(11)    Patent No :    AP 1946    (73) Applicant(s)       
(21)    Application No :    AP/P/2005/003398    ELECTROMAGNETIC GEOSERVICES AS, Stiklestadveien 1,       
            N-7041 Trondheim,       
                   
(22)    Filing Date :    17.03.2004    Norway       
(24)    Date of Grant &    04.02.2009           
                   
(45)    Publication :

(30)    Priority Data            (72) Inventors   
    (33) Country    (31) Number    (32) Date    EIDESMO Terje, Norway   
    GB    0306059.7    17.03.2003    ELLINGGSRUD Svein, Norway   
                   
                FARESTVEIT Anders, Norway   
                et al       
                (74) Representative   
(84)    Designated State           
                   
    GH   KE   MZ   NA   TZ        HONEY & BLANCKENBERG   
                   
(51)    International    Classification    G01V 3/12 (2006.01)    G01V 11/00 (2006.01)   



(54)    Title

Method and apparatus for determining the nature of submarine reservoirs.

(57)    Abstract

A system for investigating subterranean strata. An electromagnetic field and a seismic event are applied from the same location and the responses are detected using respective receivers both located at a second location spaced from the first. The responses are combined to identify the presence and/or nature of subterranean reservoir. The refracted wave components are used.

(56)    Documents Cited :    WO 02/14906 A    US 4 617 518 A    US 2003/043692 A

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